A floc particle must settle after agglomerating to form larger particles.

While designing a blower for backwash for dual media filters without air scouring what is the velocity considered?

For rock packing low- rate trickling filters what is the hydraulic loading assumed?

For a high rate filter calculate the diameter of the filter required for a flow of water of 200 m3/h.

Even by high-rate of backwash, efficiency of cleaning is poor.

What is the mixed liquor?

What is the maximum reduced concentration of BOD obtained at the outlet of tricking filter?

What does sand filter remove?